Continuous oiling and filtration apparatus.



W. W. NUGENT.

CONTINUOUS OILING AND FILTRATION APPARATUS.

APPLICATION man NOV. 28. T913- 1 ,207,067- Patented Dec. 5, 1916.

am 5W W 2 5 I I a, 5 a I,

- WILLIAM W. NUGENT, OF CHICAGO, ILLINOIS.

CONTINUOUS OILING AND FILTRATION APPARATUS.

Specification of Letters Patent.

Patented Dec. 5, 1916.

Application filed November 28, 1913. Serial No. 803,431.

To all whom it may concern:

Be it known that 1, WILLIAM W. Nuonu'r, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Continuous Oiling andFiltration Apparatus, of which the following is a specification.

This invention relates to an apparatus in which both the oil pump andthe filter will be continuous in operation whenever the apparatus towhich it is applied is also in operation, with means insuring that thepressure of oil circulated will be a certain predetermined amount andwill not exceed this pressure.

The principal object of the invention is to provide new and improvedapparatus for circulating oil, maintaining it at constant and uniformpressure and for providing pumping and filtering devices which willoperate continuously when the engine is operated.

For the attainment of these ends and'the accomplishment of other new anduseful objects as will appear, the invention consists in the features ofnovelty in the construction, combination and arrangement of the severalparts generally shown in the accompanying drawing and described in thespecification, but more particularly pointed out in the appended claims.

In the drawings Figure 1 is a perspective view of a complete apparatusconstructed in accordance with the principles of my invention andapplied to an engine of the reciprocating type; and Fig. 2 is a detailof the pump and relief valve connections.

In the drawings, the numeral 5 designates generally an engine of thereciprocating type having eccentrics 6 and other reciproeating androtary parts, to which the present invention is applied. The bearings ofan engine of this type are usually lubrlcated by a continuous flow ofclean oil which is supplied through a system of oil circulating mainsdesignated generally by the reference numeral 7. A number of drip anddischarge valves are connected to the circulation mains 7v in thewell'known manner, as illustrated in the drawings, and at the highestpoint of the apparatus is a gravity O1l receptacle 8 to which oil isdischarged through a manually controlled valve 9.

Used oil is collected and discharged into a continuous filter 10 bymeans of the oil return mains 11. This filter 10 comprises any suitabletype of continuous filter which is provided with a continuous wateroverflow 10 and with a clean oil receptacle 12. Connected from the topof the gravity ,receptacle 8 to the clean oil receptacle 12 is anoverflow pipe 13. Also connected with the clean oil receptacle 12 is apump suction pipe 14. A pump 15 of the single acting reciprocating typeis connected at one end to the engine base and at the other end to areciprocating part of the engine, as for example, to one of theeccentrics 6 and has a single suction and discharge pipe 16. Interposedbetween the suction pipe 14 and the pump suction and discharge ipe 16,is a check valve 17, and interposed between the circulation mains 7 andthe pump suotions and discharge pipe 16 is a check valve 18. These checkvalves are of any Well known type and cause the fluid to be drawn fromthe suction pipe 14 through the check valve 17 and to be dischargedthrough the check valve 18 into the oil circulation mains.

A relief valve 19 is connected to the circulation mains 7, and extendingfrom the relief valve is a discharge pipe 20 which is connected aroundthe check valves 18 and 17 and with the suction pipe 14 so that if thepressure of the fluid pumped is too great the oil will flow through therelief valve 19 through the pipe 20 to the pump suction pipe 14.

In operation the pressure of oil in the oil circulation mains iscontrolled by means of the manually operable valve 9, which permits moreor less of the oil pumped to pass to the reservoir 8. If a large amountis allowed to pass to the reservoir 8 the pressure in the oilcirculation mains will be somewhat reduced, and if the opening of thevalve 9 is restricted the pressure of the oil in the circulation mainsmay be much greater. The relief valve 19 limits the pressure of the oilin the circulation mains, and when the ressure becomes too great the oilwill simp y be shunted through the bypass 20.

What I claim .is:

1. In an oil filtration and circulation apparatus, the combination withoil circulation mains, oil drip return mains, a continuous filter inconnection with the oil drip return mains, a gravity feed reservoir inconnection with and above the circulation mains, an overflow pipeconnected from the top of the reservoir to the bottom of the filter, apump connected with the filter and with the oil circulation mains, checkvalves to cause the pump to discharge oil from the filter into thecirculation mains, and a relief valve and bypass connected around thecheck valves to limit the pressure of oil in the circulation mains.

2. In an engine oil filtration and circula tion system, the combinationwith oil circulation mains, of drip return mains, a continuous filter inconnection with the drip return mains, a reservoir in connection withthe oil circulation mains, an overflow pipe in the reservoir connectedto the bottom of the filter, a reciprocating pump in connection with themoving part of the engine, a pipe connection between the filter and theoil circulation mains, a single tubular connection from therpump to thesaid pipe, a check .valve in the pipe on both sides of the tubularconnection whereby the reciprocating action of the pump will cause thepump to draw oil from the filter and to discharge it into thecirculation mains, a relief valve and by-pass connected around the checkvalves, the relief valve being on the side adjacent the oil circulationmains, and a manually operable valve controlling-the passage of oil tosaid reservoir whereby the pressure inlphe circulation system can bevaried at w1 3. In an apparatus of the class described, the combinationwith a suction main, of a circulation main, a single pump suction anddischarge pipe, check valves connecting the pump suction and dischargepipe with each of said mains, and both permitting the motion of thefluid pumped in the same direction, an overflow tank connected with saidcirculation main, a manually operable valve controlling the passage offluid into said overflow tank, and a relief valve and overflow pipeconnected from the circulation main forming a shunt around the checkvalves.

4. In an apparatus of the class described, the combination with a singleacting pump, of a double checkivalve inlet and discharge connectiontherefor, a fluid circulation mam in connection with the pump, a gravityfeed supply reservoir also in connection with the circulation main, amanually operable valve to control the discharge of fluid from the maininto the reservoir and thereby to control the pressure of fluid in thecirculation main, and an overflow discharge connection for thereservoir.

5. In an engine oil circulation and filtration apparatus, thecombination with oil circulation mains, of a gravity reservoir at theh1gest point of the system connected to the mains, a manually operablevalve to control the oil flowing into the reservoir, oil drip returnpipes, a continuous filter in connection therewith having a clean oilreceptacle, an overflow connection from the gravity reservoir to theclean oil reservoir, a suction pipe in connection with the clean oilreceptacle, a single acting pum connected to the engine eccentric, checkva ves connecting the pump with the oil suction pipe and with the oilcirculation mains, and a relief valve connected to the oil circulationmains with an overflow connection to the suction pipe whereby thepressure in the circulation mains will not exceed a predeterminedamount.

6. In an engine oil circulation and filtration apparatus, thecombination with oil circulation pipes, oil return pipes, a filter intowhichthe return pipes discharge, a reservoir connected to thecirculation pipes, a valve to control the admission of fluid thereto, anoverflow pipe with an inlet opening at the top of the reservoir leadingto the filter, a pump operated directly by the engine to draw oil fromthe filter and discharge it into the circulation pipes, a relief valvein connection with the circulation pipes and a pipe connecting therelief valve with the pump connection to the filter to form a shuntconnection for limiting the pressure in the circulation pipes.

7. ln a lubrication distribution system, the combination with a pump, ofa plurality of lubricant feeding devices at the points of distribution,a lubricant circulating main between said pump and said feeding devices,said circulating main having a vent branching therefrom, safetymechanism for limiting the maximum pressure in said circulating main,and a valve for throttling the flow of lubricant from said main throughsaid vent to control the pressure in the our culating main below saidmaximum pressure.

8. In a lubricating system, the combination with oil distribution mains,of means for positively directing the oil through said mains, a gravityfeed reservoir connected to said mains from which they may be fed, andmeans controlling the flow of oil to said reservoir and therebycontrolling the pressure in the mains.

9. In a lubricating system, the combination with mains, of means fordirecting the liquid into said mains, a gravity feed reservoir connectedto said mains, a valve for controlling the flow of liquid from saidmains into said reservoir to regulate the flu1d pressure in the mains,and an overflow p1pe associated with said reservoir.

10. In a lubricating system, the combinat 1on with mains, of a pump forforcing l1qu1d through said mains, a by-pass for said pump and connectedto said mains, a tank connected to. said mains, a valve for controllingthe flow of liquid from said mains into said tank, and a relief valve insaid by-pass to effect local circulation in the latter when the pressurein said mains reaches a predetermined amount.

11. In combination, an engine, a pump connected to and operated by theengine, oil circulating pipes connected to the pump and adapted todeliver oil to bearings of the engine, an oil overflow tank connectedwith-the circulating pipes, and a manually operable valve in said pipesadapted to ontrol the supply of oil from. said pipes to the overflowtank to control the pressure of oil in said pipe.

12. In combination, an engine having a crank shaft and bearings therein,a pump connected With the crank shaft and adapted to be operated by andin fixed relation with said crank shaft, circulating mains connected tosaid pump and adapted to deliver oil to said bearings, an overflow pipeconnected with the circulating mains, and a valve in said overflow pipeoperable independently of pressure in said pipe adapted to control theflow of oil from the circulating mains to control the pressure of oil insaid mains.

13. A circulating main, a pump for pumping oil into said circulatingmain, safety mechanism for preventing the pressure in said circulatingmain from exceeding a predetermined maximum, and automatic means forregulating the pressure in said circulating main below saidpredetermined maximum.

14. A fluid circulating main, a pump for pumping oil into said main, abypass safety device connected to said pump and said circulating mainfor preventing the pressure in the latter from exceeding a predeterminedmaximum, and automatic means for regulating pressure in said circulatingmain below said maximum.

15. Oil mains having a vent branching therefrom, a pump connected withthe mains for directing oil into the latter, a safety device forpreventing the pressure in said mains from exceeding a' predeterminedmaximum, and means connected with said vent for varying the pressure ofoil in said mains under said maximum pressure.

16. Oil distribution mains, means for positively directing the oil tosaid mains,

automatic means for preventing the pressure in said mains from exceedinga predetermined maximum, and means branched upwardly from a vent in saidoil mains for regulating the pressure in said mains below saidpredetermined maximum.

17 Oil distributing mains, means for directing liquid into said mains,automatic safety mechanism for limiting the maximum ressure in saidmains, and means comp-rising a bypass for regulating the pressure insaid mains below such limit.

18. Oil distribution mains, a pump for forcing liquid into said mains, abypass around said pump a relief valve in said bypass to effect localcirculation in the latter when the pressure in said mains reaches apredetermined amount, an overflow tank connected to said mains and tothe source of supply, and a valve for controlling the flow of liquidfrom said mains into said tank to regulate the pressure in said mainsbelow the limit permitted by said relief valve.

19. An engine, a pump operated by a moving part of said engine, oildistribution mains between said pump and the bearings of said engine, asafety device for limiting the maximum pressure in said mains, and amanually adjustable device for regulating the pressure in said mainsbelow the maximum pressure by shunting varying amounts of oil from saidmains.

20. An engine having a shaft, a pump, means connected to said shaft fOroperating said pump, oil distribution mains for directing oil to thebearings of said engine, a bypass around said pump, a relief valve insaid bypass for limiting the pressure in said mains, a gravity overflowtank in communication with said mains, and means for controlling theflow of oil into said gravity tank to effect the regulation of pressurein said mains belowthe maximum pressure permitted therein by said bypassand relief valve.

21. An automatic lubricating system comprising distributing mains, apump, a source of supply, automatic mechanism for limiting the pressurein said mains, automatic means adapted for manual adjustment forregulating the pressure in said mains below the maximum pressure, oilreturn mains, and a filter between the oil return mains and the sourceof supply.

2-2. An engine, distributing mains extending to the bearings of saidengine, a source of supply, a pump operated by said engine for directingthe lubricant from said source of supply into said distributing mains,means connected to said pump for limiting the pressure of lubricant insaid mains, a gravity tank above the source of supply, an overflow pipeconnected between said tank and the source of supply, a valve betweensaid mains and said tank for controlling the return of flow from saidmains to said tank, mains for returning the lubricant toward the sourceof supply, and a filter between said return mains and said source ofsupply.

23. A lubricant distributing main, a pump, a source of lubricant supplyconnected to said pump, means for limiting maximum pressure in said mam,mechanism for returning the lubricant to the source of supply, a ventbranching from said main, apparatus connected to said vent forregulating the pressure in said main below a predetermined maximum, anda connection between said apparatus and the source of supply.

24; An engine, a pump connected to said engine to be operated. thereby,a source of lubricant supply connected to said pump, an oil distributionmain having'points of distribution therein, automatic mechanism forlimiting the pressure in said main, an overflow tank located above thepoints of distribution of said main, and means for controlling the flowof oil into said tank to regulate the pressure in said main below saidmaximum pressure.

25. An oil distributing main, a source'of oil supply,-a pump for forcingoil from said source of supply into said main, an overflow receptacleconnected to said source of supply, and a valve for controlling the flowof oil from said distributing main to said receptacle to regulate thepressure in said main.

26. An engine, a pump operated thereby, distributing mains extending tothe bearings of said engine, a source of lubricant supply, return pipesfor directing used lubricant back to the source of supply, a receptaclecommunicating with said distributing mains, a valve for controlling theflow of lubricant from said distributing mains to said receptacle, andan overflow pipe connected to the source of supply and having one endextending into said receptacle with its open end located above points ofdistribution.

27. An engine having a shaft, an eccentrio mounted on said shaft, apump, operating means between said pump and said eccentric, a bypassaround said pump, a relief valve in said bypass, a source of oil supply,

distributing mains extending to the bearings of said engine, returnpipes for directing used oil back toward the source of supply, a filterbetween said return pipes and said. source of supply, a receptacle incommunication, with said oil distributing mains, a

valve for controlling the flow of oil from' said distributing mains intosaid receptacle, and a pipe connected between said receptacle and saidsource of supply.

28. An automatic lubricating system for engines, a pump, connections foroperating said pump by a shaft of said engine, oil distributing mainsextending from said pump to the bearings of said engine, a device forlimiting the pressure in said distributing mains, an oil supply tankconnected to said pump, return pipes for directing used oil Witnesses:

ALLENA Orrtrr'r, KENT W. WONNELL.

WILLIAM W. NUGENT..

